The Prophet (ﷺ) sold a Mudabbar (on behalf of his master who was still living and in need of money).
Sahih al-Bukhari Book 34, Hadith 177
← Previous Hadith that while he was sitting with Allah's Messenger (ﷺ) he said, "O Allah's Messenger (ﷺ)! We get female captives as our share of booty, and we are interested in their prices, what is your opinion about coitus interrupt us?" The Prophet (ﷺ) said, "Do you really do that? It is better for you not to do it. No soul that which Allah has destined to exist, but will surely come into existence.

Sahih al-Bukhari Book 34, Hadith 176 Next Hadith → Allah's Messenger (ﷺ) sold a Mudabbar.

Sahih al-Bukhari Book 34, Hadith 178